Book-lock.



w. E. s. STRONG.& N. MACYQ BOOK LOCK.

APPLICATION 'FILED AUG. 10, IBM. RENEWED JUNE 30.1915.

Patented Oct. 12, 1915.

Hllllll l/V l/EA/TORS WEZZZMZT a5: 370139 COLUMBIA PLANOORAPH cm.WASHINGTON, DV 6.

UN ED STATS PATENT once.

WILLIAM E. s. STRONG, or FALMouTH TO NSHIP, BARNSTABLE CoUNTY, MASSACHU-sETTs, AND ELsoN MAC'Y, or GREENWICI-I, CONNECTICUT.

BOOK-LOCK.

Specification of Letters Patent,

Patented Oct. 12, 1915.

Application filed August 10, 1914, Serial No. 856,043. Renewed June 30,1915. Serial No. 37,394.

To all whom it may concern Be it known that we, WILLIAM E. S. STRONG andNELSON MACY, citizens of the United States, and residents of Falmouthtownship, in the county of Barnstable and State of lVIassachusetts, andGreenwich, 1n the county of Fairfield and State of Connecticut,respectively, have invented certain new and useful Improvements in Book-Locks, of which the following is a specification.

This invention relates to means for looking the covers of books inclosed posltion, such as books of record of business establishments, andthe main object thereof is to provide such locking devices which, whennot in use, are entirely contained within the covers of the book, andwhich, whether in or out of operative position, do not present anyportion thereof upon the surfaces of the book and, for this reason,cannot deface the surfaces of desks, tables, or the like upon which thebook may be placed.

Our invention is fully described in the following specification, ofwhich the accompanying drawings form a part, in which the separate partsare designated by the same reference characters in each of the vlews,and in which Figure 1 is a perspective, fragmentary, view of a bookprovided with our invention, in locking position, and partly broken awayto show the construction; Fig. 2 is a section therethrough, taken on theline 22 of Fig. 4f; Fig. 3 is a view similar to Fig. 2, but showing thelock in inoperative position; and Fig. 4 is a section taken on the line14 of Fig. 2.

1n the drawings forming a part of this application we have shown apresent preferred form of embodiment of our invention, comprising abook, the body or leaf portion of which is shown at 5, and the up perand lower covers at 6 and 7, respectively, which covers our lock 8 isadapted to secure against unwarranted opening.

The upper cover 6 is recessed at 9 to receive a frame comprising, in theform shown, longitudinal tubular members 10 joined by transverse tubularmembers 11 and 12, the former of which is at the inner end of the frame,and the latter at a point intermediate the ends of the members 10 toform a pocket 13, said members 10 being interiorly slotted, as shown at14 for the distance between the members 11' and 12,'and the last namedmembers being secured in positlon in the recess 9 by means ofpins 15, orequivalent, and the frame members are soldered or otherwise securedtogether in the form shown in Fig. 4.

Slidable in each of the tubular members 10 is a bar 16 pivoted, by meansof a pin 17, to a supplemental bar 18 at the edge of the book cover, thebars 18 jointly supporting a lock casing 19 provided with a keyhole 20and any suitable lock mechanism, not shown, may be contained within thecasmg 19 for locking engagement with a lock member 21 on the lower bookcover 7, and it Wlll be noted that the supplemental slide bars 18 aremade of a length approximating the thickness of the book, as clearlyshown 1n Flgs. 1 and 2, and the length of the frame formed by thetubular members 10, 11 and 12 is made accordingly.

By reference to Fig. 2 it will be seen that the inner and outer surfacesof the cover 6 are not marred by slots, recesses, or the like, butpreserve their normal continuity, the only indications of a look, whenthe book is unlocked, being the front opening of the recess 9 and thelock member 21, but we do provide, preferably, a thumb-nail notch 22 inthe edge of the inner surface of the cover 6, whereby the lock casing 19may be withdrawn from said recess, and it will also be seen that twoguide pins 23 project into the corresponding frame slots 1d whereby theyserve not only as guides but also as limiting stops for the outwardmovement of the lock casing.

We prefer, as. illustrated, to make the frame of square tubing, toreduce the diameter thereof for a given degree of strength, but this isnot essential as other configurations in cross section may be as readilyemployed, the main feature of the invention being to preserve anunbroken surface upon each of the covers to prevent marring of a desk orthe like, for a book lock, and also to entirely bury the lock casing andconnected parts when the book is unlocked, and we may also, though notso shown, slide the lock member 21 into the cover 7 Having fullydescribed the invention, what we claim as new, and desire to secure byLetters Patent, is

1. The combination with the covers of a book, of a lock casing slidablein one cover,

and a look member on the other cover, said first named cover beingrecessed to receive said lock casing.

52. The combination With the covers of a book, of a lock casing slidablein one cover, a frame in said cover for guiding said lock casing, andalock member on the other cover, the surfaces of said covers beingunbroken.

3. The combination With the covers of a book, of tWo jointed bars guidedin one cover, a lock casing carried at the outer ends thereof, a lockmember on the other cover,

and means for limiting the outward movement of said bars, the surfacesof said covers 1.

WILLIAM E. S. STRONG. NELSON MACY.

Witnesses RUssELL D. BUROHARD, LOUISE SCI-INUPP.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington. D. C.

